Porsche 1972 911 Workshop Manual page 247

C L E A N I N G FUEL T A N K PLUG W I T H B U I L T - I N C I S FILTER
Fuel supply problems can b e traced, among other
things, to a dirty filter in the fuel tank plug.
Use new rubber gasket during reassembly.
Tank plug tightening torque is 0.8
-
0.9 mkp.
1. Fuel tank
2. Rubber gasket
3.
S e r v i c i n g
Tank plug with filter
2